The conference will be held at the Piperska Muren, a historic
meeting center. Both of hotels used by conference participants, the conference
center, and most of the evening activities are located within about 2 km of each
other, around the center of Stockholm. Nordita itself is located 3 km north of
the central area. A map of all the venues is shown here (external
link):

Language

The main language is, of course, Swedish. However, nearly everyone is fluent
in English (about 90% of the population), so you should have no difficulty
communicating with the locals.

Currency

The local currency is the Krona or "crowns" (SEK); the exchange rates as of
Spring 2015 are about 1 Euro = 9 SEK and 1 USD = 8 SEK. Credit/debit cards can
be used just about everywhere and are usually the preferred form of payment. If
coming from the USA or another country where credit cards do not have a
chip+PIN, you may need to say your card requires a signature when making a
purchase; carry your passport with you as identification in this case. Without
the PIN, you may run into difficulty using some ticket machines.

Weather

The typical high in early June is 20 °C (70 °F) with an overnight low
of 10 °C (50 °F); those can fluctuate by 5 °C (10 °F) on a
day-to-day basis. Rain is a possibility. Because Stockholm is so far north,
the days are long during the summer: there will be 18 hours of daylight each day
during the week of the conference.

Arriving in Stockholm

As the main airport, most flights go through Arlanda Airport. The center of
the city can be reached via taxi, train, or bus. The airport has several
information desks that can help you find your way; free local maps can also be
found there.

Taxi. The most convenient, but most expensive option. A journey
to central Stockholm costs around 500 SEK and takes about 45 minutes.

Train: Arlanda
Express. This high-speed train takes you to the central train station
from where you may continue your journey via subway, bus, or taxi (see below).
A one-way ticket is 280 SEK, roundtrip is 530 SEK; discounts are sometimes
available when traveling with others. The trains are frequent, running every 15
minutes for most of the day. Follow the signs located throughout the airport.
Tickets can be purchased via ticket machines or from one of the airport
information desks. The journey takes 20-25 minutes.

Bus: FlygbussarnaA
frequently running bus shuttle that takes you to the central bus terminal from
where you may continue your journey via subway, bus, or taxi (see below).
Tickets are 119 SEK one-way or 215 SEK roundtrip when purchased via the ticket
machines at the airport or bus terminal. The tickets can also be purchased
online for a slight discount (99/198 SEK). When purchasing online, you need not
print out the ticket if you have a smart phone: simply show the QR-code from
your PDF ticket on your screen. Tickets are valid for 90 days. These buses are
also frequent, running every 15 minutes during most of the day. Follow the
signs for Flygbussarna pickup locations and be sure to take the one that goes to
"Cityterminalen" (the busiest one). The buses and stops are easily identified
by the rainbow insignia they use. The journey takes 45-60 minutes.

Early morning arrivals/departures.Between 1:00 and 5:00 in the
morning, Arlanda Express and Flyggbussarna may not be operating. However, the
city bus line 592 runs hourly during these times. Taxis are also
available.

The main train (Centralstation) and bus (Cityterminalen) stations are located
adjacent to each other in the central area of Stockholm. They are conveniently
connected by an underground passage to one of the main subway stations
(T-Centralen), through which all the subway lines pass. Numerous local bus
lines are easily accessible; see below for public transit details. Taxis can be
found at all hours in the designated areas (follow the signs).

The public transportation system (SL) is composed of bus, subway (tunnelbana,
or T-bana), and local commuter train (pendeltåg) lines. In any journey,
you may transfer among these various modes for up to an hour after you first
start your journey.

To use the public transit system, you must purchase an SL Access card (20
SEK) and then purchase tickets to be stored on this electronic smart card. You
may purchase passes for 24 hours (115 SEK), 72 hours (230 SEK) or 7 days (300
SEK), or you may simply place credit on the card and pay fares for each journey
(36 SEK for a 1 zone journey, which encompasses nearly all locations you are
likely to go). SL access cards can be purchased at an SL customer service
center (one in Centralstation in T-Centralen, the central subway station) or at
many convenience stores (such as Pressbyrån). Credit and tickets can then
be purchased at the same locations or at machines located at each subway &
commuter train station. Note that you cannot purchase tickets on a bus:
you must have credit or a ticket loaded on your card beforehand. To use the
card when boarding a bus or entering a subway/commuter train station, just swipe
your card over the light blue reader. You do not need to swipe out for any of
these.

The SL website has a journey planner on it's front
page. All the public transit schedules are also available through google maps, which may be a more
convenient journey planner. All subways and some bus stops have displays
showing real-time information.

This conference center is located on Kungsholmen ("King's Island"), about 1
km west of the train station. From the central train/bus station, it can be
reached via taxi, bus (40 & 52 are the closest, 1 & 3 are not much
farther), or a 10-15 minute walk. The Amaranten hotel is next to the the
conference center, which can be most easily reached via a back entrance to the
hotel. From the Grand Hotel, Piperska Muren is most easily reached by taking
either of the blue line subways from Kungsträdgården to
Rådhuset.

Hotels

For those arriving from North America, note that a "double" room refers to a
room meant for two, not to the bed size.

Clarion
Hotel Amaranten.
Located adjacent to the Piperska Muren conference venue. Piperska Muren can be
easily accessed via a rear entrance to the hotel. If arriving from the
train/bus station, local buses 40 & 52 are the most convenient, while 1
& 3 are also close (there are even more lines if you find a transit map).
Otherwise, it is a 10-15 minute walk (0.8 km). Despite appearances on a map,
the subway is not more convenient than just walking (the surface exits do not
show the actual locations of the subway platforms).

Grand Hotel.
Located on the waterfront, facing the Stockholm Palace ("Kungliga Slottet").
From the train/bus station, a taxi is most convenient. Otherwise, either blue
line train can be taken from T-Centralen to Kungsträdgården (one
stop). Bus line 65 also works. To travel to/from the Piperska Muren conference
venue, take either blue line train from Kungsträdgården to
Rådhuset (two stops).